AHT Cooling Systems GmbH | en-US
– Freezer
– Ice cream freezer
Switching between the operating modes is done via
the controller [see } Chapter 5.2].
NOTICE
Property damage caused by missing interior.
§ Operate unit with wall grille at any setting.
§ Operate the unit in Area of use/operating mode
Refrigerator with wall grilles, bottom inlays and
floor grilles.
The waste heat generated in the unit is discharged to
the ambient air via a heat condenser.
Unit automatically defrosts in regular cycles to keep
the inner tank free of frost and ice [see } Chapter 4.1].
Unit works properly even if frost/ice accumulates on
the surface of the inner tank.
A limited number of semi-automatic defrosts can be
performed [see } Chapter 5.2.4].
4.1
Automatic defrosting
The appliance features automatic defrosting.
The following display messages and symbols appear
during automatic defrosting [see } Chapter 5].
Controller
Display
AHT
The frequency, duration, and time of defrosting are
preset.
Defrosting frequency
– Once/week
Defrosting period
– Up to 70 min
Defrosting time
– Start time is controlled with a real time clock and
takes place during the night.
The defrost cycle ends automatically when the ice/
frost is removed.
The end of the defrost cycle is triggered by the internal
temperature sensor or the software-based maximum
timeout time.
The accumulated condensation water is guided out of
the device interior into the machine room and evapo-
rated there.
CAUTION
Leakage of defrosting water.
Slipping hazard.
§ Check for puddles in front of and under
the appliance.
§ Remove any defrosting water that es-
capes immediately.
§ Contact the maintenance service immedi-
ately [see } Chapter 11.3.2].
440195_1_0521
If automatic defrosting takes place during business
hours, contact the maintenance service [see } Chap-
ter 11.3.2].
For unit with Area of use/operating mode Refrigerator/
Ice cream freezer semi-automatic defrosting can be
initiated if required [see } Chapter 5.2.4].
After each automatic or semi-automatic defrost, it is
blocked for 84 hours.
Automatic defrost and semi-automatic defrost (button
) are set inactive in Area of use/operating mode
Freezer.
5
5.1
Interior appliance temperature display
– Display screen at the control element
[see } Chapter 5]
Check of interior temperature
Responsibility
– Operating personnel
Frequency
– several times daily
Symbol
5.2
Keys are available as control elements, with the fol-
lowing assignments:
Fig. 3: Control elements
Control and display elements | 5
Control and display
elements
Temperature display
Control elements and
displays
Key
Switch cooling function on and
Start semi-automatic defrosting
Application change
Increase bus address
Acknowledge acoustic alarm
Call up error code
Switch appliance lighting on
Function
off
Key lock
Key lock
and off
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